US5261287A - Positive engagement clutch for a submersible cleaning device - Google Patents
Positive engagement clutch for a submersible cleaning device Download PDFInfo
- Publication number
- US5261287A US5261287A US07/880,669 US88066992A US5261287A US 5261287 A US5261287 A US 5261287A US 88066992 A US88066992 A US 88066992A US 5261287 A US5261287 A US 5261287A
- Authority
- US
- United States
- Prior art keywords
- ring
- pawl
- shaft
- teeth
- drive shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/14—Parts, details or accessories not otherwise provided for
- E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
- E04H4/1654—Self-propelled cleaners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/15—Intermittent grip type mechanical movement
- Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2133—Pawls and ratchets
- Y10T74/2136—Pivoted pawls
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2133—Pawls and ratchets
- Y10T74/2136—Pivoted pawls
- Y10T74/214—Multiple tooth
Definitions
- This invention relates to a drive mechanism adapted for use with a submersible cleaning device.
- shaft herein includes gear, lever and the like.
- such a device comprises a toothed ring associated with a driven shaft and one or more pawl elements on a drive shaft each mounted for pivotal movement between a first extreme position wherein the pawl is generally radially disposed to engage the teeth on the rip and a second extreme position wherein the pawl is angled out of a radial direction, wherein it is disengaged from the teeth, the arrangement being one wherein the pawl elements art in a dense medium which serves to hold the pawl stationary relative to the drive shaft upon angular movement of the latter, causing the pawl to move to the first extreme position upon rotation of the shaft in one direction and to the second extreme position upon rotation of the shaft in the reverse direction.
- the dense medium within which the pawl elements operate will be the liquid wherein the surface to be cleaned is submerged.
- the pawl elements will be pivotally movable in a pocket defined towards the outer surface of the drive shaft, such pocket defining abutment surfaces limiting the pivotal movement of the pawl elements between the first and the second extreme positions.
- the toothed ring will be defined within a socket, bore or the like of the driven shaft with the drive shaft and its pawl elements accommodated within such socket or bore.
- the mechanism includes means for permitting rotational movement of the driven shaft in one direction and for constraining it from movement in a reverse direction comprising a pawl and ratchet arrangement.
- a toothed rack for such pawl and ratchet arrangement will be provided on the outer surface of the driven shaft and the pawl therefore mounted on an external support.
- FIG. 1 is a partially sectioned perspective view of a drive arrangement in accordance with the invention
- FIG. 2 is a section on line II--II in FIG. 1 illustrating angular movement of a drive shaft in one direction;
- FIG. 3 is a section on line II--II in FIG. 1 illustrating movement of the drive shaft in the reverse direction to that shown in FIG. 2;
- FIG. 4 is a sectioned elevation of the arrangement in FIG. 1.
- a drive mechanism for use with a submersible cleaning device, for translating reciprocating angular movement shown at 10a of a drive shaft 10 into one directional angular movement shown at 11a of a driven gear 11, is illustrated.
- the driven gear 11 can perform a number of functions for the pool cleaner and it is in particular envisaged that it will drive a dislodgement mechanism for a pool cleaner through a number of reduction gears, such as that shown at 19, FIG. 4.
- the drive mechanism comprises a peripheral ring of teeth 12 secured or integrally formed within a drum 13 or alternatively a bore, (not shown), defined at the end of the driven gear 11 .
- the teeth are periodically engaged by a plurality of pawl or sprag elements 14 which are pivotally mounted on pockets 15 defined in a collar formation 20 at the end of the drive shaft 10.
- the collar 20 of the drive shaft 10 and the sprag elements 14 are thus disposed within the drum 13 of the driven gear 11 to enable the pawl elements 14 periodically to engage the internal teeth 12.
- the pockets 15 which pivotally mount the pawl elements 14 define opposed abutment surfaces 15a, 15b, which act to limit pivotal movement of the pawl elements 14 between a first extreme position (shown in FIG. 2) wherein the pawl elements 14 are substantially radially disposed to engage the teeth 12; and a second extreme position (shown in FIG. 3) wherein the pawl elements 14 are angled relative to the radial and out of engagement with the teeth 12.
- the pawl elements 14 will operate in a dense liquid medium 16, preferably the same liquid in which the surface to be cleaned is immersed, and this dense medium 16 will tend to impart a high degree inertia to the pawl elements 14.
- the free ends 14a of the pawl elements 14 will thus tend to remain stationary during angular movement of the drive shaft 10 in one direction or the other.
- rotational movement of the drive shaft 10 in an anti-clockwise direction will cause the pawl elements 14 to move to the second extreme position (FIG. 3) and remain in such position during further anti-clockwise rotation of the drive shaft 10.
- the sprag elements 14 will immediately straighten out to the first extreme position wherein they are radially orientated and engage the teeth 12 of the driven shaft 11.
- the invention further provides a pawl and ratchet arrangement comprising peripheral ratchet teeth 17 defined on the outer periphery of the drum 13 which are engaged by means of a pawl member 18 which is mounted independently of the drum 13.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims (6)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/978,237 US5404607A (en) | 1992-05-11 | 1992-11-18 | Self-propelled submersible suction cleaner |
AU33708/93A AU663920B2 (en) | 1992-02-28 | 1993-02-22 | Volume format information |
CA002090195A CA2090195C (en) | 1992-02-28 | 1993-02-23 | Self propelled submersible suction cleaner |
AU33737/93A AU663921B2 (en) | 1992-02-28 | 1993-02-24 | Self propelled submersible suction cleaner |
US08/307,938 US5664275A (en) | 1992-05-11 | 1994-09-16 | Vibratory oscillator swimming pool cleaner employing means for facilitating self starting and for avoiding clogging |
US08/474,991 US5797156A (en) | 1992-05-11 | 1995-06-07 | Vibratory cleaner and method |
US08/921,824 US5974647A (en) | 1992-05-11 | 1997-09-02 | Vibratory oscillator swimming pool cleaner employing means for facilitating self starting and for avoiding clogging |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA921505 | 1992-02-28 | ||
ZA92/1505 | 1992-02-28 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/978,237 Continuation-In-Part US5404607A (en) | 1992-02-28 | 1992-11-18 | Self-propelled submersible suction cleaner |
US08/921,824 Continuation-In-Part US5974647A (en) | 1992-05-11 | 1997-09-02 | Vibratory oscillator swimming pool cleaner employing means for facilitating self starting and for avoiding clogging |
Publications (1)
Publication Number | Publication Date |
---|---|
US5261287A true US5261287A (en) | 1993-11-16 |
Family
ID=25581446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/880,669 Expired - Lifetime US5261287A (en) | 1992-02-28 | 1992-05-11 | Positive engagement clutch for a submersible cleaning device |
Country Status (2)
Country | Link |
---|---|
US (1) | US5261287A (en) |
ZA (1) | ZA931379B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6094764A (en) * | 1998-06-04 | 2000-08-01 | Polaris Pool Systems, Inc. | Suction powered pool cleaner |
US8956533B2 (en) | 2011-10-03 | 2015-02-17 | Pentair Water Pool And Spa, Inc. | Pool cleaner with multi-stage venturi vacuum assembly |
US8990990B2 (en) | 2011-10-03 | 2015-03-31 | Pentair Water Pool And Spa, Inc. | Pool cleaner with hydraulic timer assembly |
US9119463B2 (en) | 2011-10-03 | 2015-09-01 | Pentair Water Pool & Spa, Inc. | Pool cleaner with detachable scrubber assembly |
US9874196B2 (en) | 2013-03-13 | 2018-01-23 | Pentair Water Pool And Spa, Inc. | Double paddle mechanism for pool cleaner |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE104135C (en) * | ||||
US219698A (en) * | 1879-09-16 | Improvement in pawl-and-ratchet mechanisms for mowing-machines | ||
US232241A (en) * | 1880-09-14 | coltman | ||
US265745A (en) * | 1882-10-10 | Pawl-and-ratchet mechanism | ||
US271132A (en) * | 1883-01-23 | Device for converting motion | ||
US286596A (en) * | 1883-10-16 | Device for converting motion | ||
US394085A (en) * | 1888-12-04 | Edgar w | ||
US1001277A (en) * | 1911-01-26 | 1911-08-22 | William S Johnson | Engine-starter. |
US1333689A (en) * | 1918-06-06 | 1920-03-16 | Ulfeldt Johan | Releasing and clutching mechanism for presses and the like |
US2129566A (en) * | 1936-11-30 | 1938-09-06 | Cleveland Rock Drill Co | Fluid operated tool |
US2153556A (en) * | 1938-05-25 | 1939-04-11 | Sullivan Machinery Co | Ratchet and pawl mechanism |
US2368892A (en) * | 1942-11-25 | 1945-02-06 | Per F Skoog | Clutch mechanism |
US3667307A (en) * | 1968-07-19 | 1972-06-06 | Kienzle Apparate Gmbh | Stepping clutch device |
US3712433A (en) * | 1970-10-07 | 1973-01-23 | Burroughs Corp | Dual torque coupling |
US4401006A (en) * | 1981-08-05 | 1983-08-30 | Takeshi Sekiguchi | Music box spring winding mechanism |
US4788874A (en) * | 1987-02-06 | 1988-12-06 | Nelson Bertel S | Differential clutch |
-
1992
- 1992-05-11 US US07/880,669 patent/US5261287A/en not_active Expired - Lifetime
-
1993
- 1993-02-26 ZA ZA931379A patent/ZA931379B/en unknown
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE104135C (en) * | ||||
US219698A (en) * | 1879-09-16 | Improvement in pawl-and-ratchet mechanisms for mowing-machines | ||
US232241A (en) * | 1880-09-14 | coltman | ||
US265745A (en) * | 1882-10-10 | Pawl-and-ratchet mechanism | ||
US271132A (en) * | 1883-01-23 | Device for converting motion | ||
US286596A (en) * | 1883-10-16 | Device for converting motion | ||
US394085A (en) * | 1888-12-04 | Edgar w | ||
US1001277A (en) * | 1911-01-26 | 1911-08-22 | William S Johnson | Engine-starter. |
US1333689A (en) * | 1918-06-06 | 1920-03-16 | Ulfeldt Johan | Releasing and clutching mechanism for presses and the like |
US2129566A (en) * | 1936-11-30 | 1938-09-06 | Cleveland Rock Drill Co | Fluid operated tool |
US2153556A (en) * | 1938-05-25 | 1939-04-11 | Sullivan Machinery Co | Ratchet and pawl mechanism |
US2368892A (en) * | 1942-11-25 | 1945-02-06 | Per F Skoog | Clutch mechanism |
US3667307A (en) * | 1968-07-19 | 1972-06-06 | Kienzle Apparate Gmbh | Stepping clutch device |
US3712433A (en) * | 1970-10-07 | 1973-01-23 | Burroughs Corp | Dual torque coupling |
US4401006A (en) * | 1981-08-05 | 1983-08-30 | Takeshi Sekiguchi | Music box spring winding mechanism |
US4788874A (en) * | 1987-02-06 | 1988-12-06 | Nelson Bertel S | Differential clutch |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6094764A (en) * | 1998-06-04 | 2000-08-01 | Polaris Pool Systems, Inc. | Suction powered pool cleaner |
US8956533B2 (en) | 2011-10-03 | 2015-02-17 | Pentair Water Pool And Spa, Inc. | Pool cleaner with multi-stage venturi vacuum assembly |
US8990990B2 (en) | 2011-10-03 | 2015-03-31 | Pentair Water Pool And Spa, Inc. | Pool cleaner with hydraulic timer assembly |
US9119463B2 (en) | 2011-10-03 | 2015-09-01 | Pentair Water Pool & Spa, Inc. | Pool cleaner with detachable scrubber assembly |
US9677295B2 (en) | 2011-10-03 | 2017-06-13 | Pentair Water Pool And Spa, Inc. | Scrubber assembly for a pool cleaner |
US9809991B2 (en) | 2011-10-03 | 2017-11-07 | Pentair Water Pool And Spa, Inc. | Pool cleaner with multi-stage venturi vacuum assembly |
US10125509B2 (en) | 2011-10-03 | 2018-11-13 | Pentair Water Pool And Spa, Inc. | Pool cleaner with hydraulic timer assembly |
US10443259B2 (en) | 2011-10-03 | 2019-10-15 | Pentair Water Pool And Spa, Inc. | Scrubber assembly for a pool cleaner |
US11118369B2 (en) | 2011-10-03 | 2021-09-14 | Pentair Water Pool And Spa, Inc. | Pool cleaner with hydraulic timer assembly |
US9874196B2 (en) | 2013-03-13 | 2018-01-23 | Pentair Water Pool And Spa, Inc. | Double paddle mechanism for pool cleaner |
Also Published As
Publication number | Publication date |
---|---|
ZA931379B (en) | 1993-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SEBOR, PAVEL, SOUTH AFRICA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GALE GROUP, INC.;REEL/FRAME:006979/0937 Effective date: 19930215 Owner name: LAROSAN ONTWERP B.V., NETHERLANDS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GALE GROUP, INC.;REEL/FRAME:006979/0937 Effective date: 19930215 |
|
AS | Assignment |
Owner name: WATTATEC LIMITED PARTNERSHIP, FLORIDA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SEBOR, PAVEL;REEL/FRAME:008328/0177 Effective date: 19961209 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
SULP | Surcharge for late payment | ||
REMI | Maintenance fee reminder mailed | ||
FPAY | Fee payment |
Year of fee payment: 8 |
|
SULP | Surcharge for late payment |
Year of fee payment: 7 |
|
FEPP | Fee payment procedure |
Free format text: PAT HOLDER NO LONGER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: STOL); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20011116 |
|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
REMI | Maintenance fee reminder mailed | ||
FPAY | Fee payment |
Year of fee payment: 12 |
|
SULP | Surcharge for late payment |
Year of fee payment: 11 |